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TheiXn
@TheiXn
July 2022
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решил что способом подстановки x-3y=-1 и 2x+y=5
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rubilovalex
Y=5-2x. подставляем в 1 уравнение: x-3*(5-2x)= -1; x+6x-15= -1; x+6x=15-1; 7x=14; x=14/7=2. y=5-2*2=5-4=1. Ответ: (2:1).
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